Positioning clamp for relay test

Abstract

The utility model relates to a positioning fixture for relay testing, which belongs to the technical field of relay testing and comprises a workbench, a cavity is arranged in the workbench, the front surface of the cavity is communicated with the outside, and a sealing plate is fixedly mounted in the cavity through bolts. A containing groove is formed in the top of the workbench, a rubber pad is fixedly installed on the inner wall of the containing groove, a fixing assembly is arranged in the cavity, and the fixing assembly comprises a driving part arranged in the cavity. According to the positioning clamp for relay testing, through the arrangement of the fixing assembly, the device can fix the bottom and the middle of a relay, so that the bottom of the relay is difficult to move or incline in the testing process, and the problem that a traditional relay clamping device usually only clamps the surfaces of the two sides of the relay, so that the clamping efficiency is high is solved. And the bottom of the relay is still in a movable state, so that the relay is easy to deviate or shake in a test process.

Description

Technical Field

[0001] The utility model relates to the technical field of relay testing, in particular to a positioning fixture for relay testing. Background Art

[0002] A relay is an electrical control device that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change in the input quantity reaches the specified requirement. It has a control system and a controlled system, and is usually used in automated control circuits, using a small current to control a large current operation, and plays the role of automatic regulation, safety protection, and circuit conversion in the circuit.

[0003] Since a failed relay may cause failure and danger to the electrical system, and may even damage the safety of equipment and personnel, it is particularly important to test the relay. The main purpose of relay testing is to detect the performance and stability of the relay during use and predict its service life.

[0004] During the relay testing process, a clamping device is usually used to clamp the relay to ensure the accuracy and stability of the relay during the test. However, the traditional relay clamping device usually only clamps the two side surfaces of the relay, so that the bottom of the relay is still in an active state, causing the relay to easily deviate or shake during the test, thereby affecting the accuracy and reliability of the test results. Therefore, the utility model is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a positioning fixture for relay testing, which has the advantages of being easy to fix the relay, etc., and solves the problem that during the relay testing process, a clamping device is usually used to clamp the relay, thereby ensuring the accuracy and stability of the relay during the test. However, traditional relay clamping devices usually only clamp the two side surfaces of the relay, so that the bottom of the relay is still in an active state, resulting in the relay being easily offset or shaking during the test, thereby affecting the accuracy and reliability of the test results.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning fixture for relay testing, comprising a workbench, a cavity is provided inside the workbench, the front of the cavity is connected to the outside, a sealing plate is fixedly installed in the cavity by bolts, a placement groove is provided on the top of the workbench and a rubber pad is fixedly installed on the inner wall of the placement groove, and a fixing component is arranged inside the cavity.

[0007] The fixing assembly includes a driving member arranged inside the cavity, a connecting member extending into the placement groove is arranged on the inner bottom wall of the cavity and located on one side of the driving member, and limiting members are arranged on the upper surface of the workbench and located on both sides of the placement groove.

[0008] Furthermore, the connecting piece includes a threaded cylinder rotatably installed through a bearing, a threaded block is threadedly installed on the inner wall of the threaded cylinder, a fixing column is fixedly installed on the upper surface of the threaded block, and the fixing column is located inside the placement groove. A positioning plate is fixedly installed at one end of the fixing column.

[0009] Furthermore, the driving member includes a driven gear fixedly sleeved on the surface of the threaded barrel, a motor is fixedly mounted on the inner bottom wall of the cavity, and a driving gear meshing with the driven gear is fixedly mounted on the output end of the motor.

[0010] Furthermore, the limiting member includes a fixing plate fixedly mounted on the upper surface of the workbench, an electric push rod fixedly mounted on one side surface of the fixing plate, a movable end of the electric push rod laterally moves through the fixing plate and is fixedly mounted on the limiting plate, and an anti-slip pad is fixedly mounted on one side surface of the limiting plate facing the positioning plate.

[0011] Furthermore, a contact block is fixedly mounted on the lower surface of the positioning plate, and a control switch is fixedly mounted on the inner bottom wall of the cavity and directly below the contact block.

[0012] Furthermore, the interior of the positioning plate is a hollow structure, a plurality of support rods are fixedly installed between the inner top wall and the inner bottom wall of the positioning plate, and a temperature sensor is fixedly installed on the inner bottom wall of the positioning plate.

[0013] Furthermore, a water storage tank is fixedly installed on one side surface of the workbench, and a reflux tank is fixedly installed on the other side surface of the workbench. Water pumps are fixedly installed on the inner bottom walls of the water storage tank and the reflux tank. Delivery pipes are fixedly installed on the output ends of the two water pumps and the other ends of the delivery pipes extend to the interior of the placement groove and are connected with the interior of the positioning plate.

[0014] Compared with the prior art, the utility model provides a positioning fixture for relay testing, which has the following beneficial effects:

[0015] The positioning fixture for relay testing, by setting a fixing component, enables the device to fix the bottom and the middle of the relay, making it difficult for the bottom of the relay to move or tilt during the test, thereby solving the problem that traditional relay clamping devices usually only clamp the two side surfaces of the relay, so that the bottom of the relay is still in an active state, causing the relay to easily shift or shake during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 3 For this utility model Figure 1 Enlarged view of point A in the middle.

[0019] In the figure: 1. workbench; 2. cavity; 3. sealing plate; 4. threaded cylinder; 5. threaded block; 6. fixing column; 7. positioning plate; 8. driven gear; 9. motor; 10. driving gear; 11. fixing plate; 12. electric push rod; 13. limit plate; 14. contact block; 15. control switch; 16. support rod; 17. temperature sensor; 18. water storage tank; 19. reflux tank; 20. water pump. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 and Figure 2 A positioning fixture for relay testing in this embodiment includes a workbench 1, a cavity 2 is opened inside the workbench 1, the front of the cavity 2 is connected to the outside, a sealing plate 3 is fixedly installed in the cavity 2 by bolts, a placement groove is opened on the top of the workbench 1 and a rubber pad is fixedly installed on the inner wall of the placement groove, and a fixing component is arranged inside the cavity 2.

[0022] It should be noted that by providing the rubber pad, the bottom surface of the relay can be protected.

[0023] Example 1: Please refer to Figure 1 and Figure 2 In this embodiment, the fixing assembly includes a driving member arranged inside the cavity 2, a connecting member extending into the placement groove is arranged on the inner bottom wall of the cavity 2 and on one side of the driving member, and limiting members are arranged on the upper surface of the workbench 1 and on both sides of the placement groove.

[0024] Among them, the connecting part includes a threaded tube 4 rotatably installed through a bearing, a threaded block 5 is threadedly installed on the inner wall of the threaded tube 4, and a fixing column 6 is fixedly installed on the upper surface of the threaded block 5, which vertically moves through the threaded tube 4 and extends to the inside of the placement groove, and a positioning plate 7 is fixedly installed at one end of the fixing column 6 located inside the placement groove.

[0025] It should be noted that, since the placement groove is square and the positioning plate 7 is also square, the placement groove limits the positioning plate 7 so that the threaded block 5 can move vertically under the limitation of the positioning plate 7.

[0026] Secondly, the driving member includes a driven gear 8 fixedly sleeved on the surface of the threaded barrel 4, a motor 9 is fixedly mounted on the inner bottom wall of the cavity 2, and a driving gear 10 meshing with the driven gear 8 is fixedly mounted on the output end of the motor 9.

[0027] Specifically, when the relay is placed on the surface of the positioning plate 7, the staff starts the motor 9, so that the motor 9 drives the threaded cylinder 4 to rotate through the driving gear 10 and the driven gear 8, so that the threaded block 5 can move downward, and the threaded block 5 drives the positioning plate 7 to move downward through the fixed column 6, so that the positioning plate 7 can drive the relay to move downward for a distance, so that the placement groove limits the bottom of the relay, thereby solving the problem that the traditional relay clamping device usually only clamps the two side surfaces of the relay, so that the bottom of the relay is still in an active state, causing the relay to be easily offset or shaken during the test.

[0028] In addition, the limiting member includes a fixed plate 11 fixedly installed on the upper surface of the workbench 1, an electric push rod 12 is fixedly installed on one side surface of the fixed plate 11, the movable end of the electric push rod 12 moves transversely through the fixed plate 11 and is fixedly installed with a limiting plate 13, and an anti-slip pad is fixedly installed on one side surface of the limiting plate 13 facing the positioning plate 7.

[0029] Specifically, the electric push rod 12 drives the limiting plate 13 to move, so that the limiting plate 13 limits the two side surfaces of the relay, so that the two side surfaces of the relay can be kept fixed.

[0030] It should be noted that a contact block 14 is fixedly mounted on the lower surface of the positioning plate 7 , and a control switch 15 is fixedly mounted on the inner bottom wall of the cavity 2 and directly below the contact block 14 .

[0031] The control switch 15 is electrically connected to the motor 9 . When the contact block 14 contacts the control switch 15 , the control switch 15 controls the motor 9 to stop running, thereby stopping the movement of the positioning plate 7 and avoiding the collision between the positioning plate 7 and the inner bottom wall of the cavity 2 .

[0032] Example 2: Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment, the interior of the positioning plate 7 is a hollow structure, a plurality of support rods 16 are fixedly installed between the inner top wall and the inner bottom wall of the positioning plate 7, and a temperature sensor 17 is fixedly installed on the inner bottom wall of the positioning plate 7.

[0033] It should be noted that by providing a plurality of support rods 16 , the internal structural strength of the positioning plate 7 is enhanced, and by providing a temperature sensor 17 , the water temperature inside the positioning plate 7 can be monitored in real time.

[0034] Among them, a water storage tank 18 is fixedly installed on the surface of one side of the workbench 1, and a reflux box 19 is fixedly installed on the surface of the other side of the workbench 1. Water pumps 20 are fixedly installed on the inner bottom walls of the water storage tank 18 and the reflux box 19. Delivery pipes are fixedly installed on the output ends of the two water pumps 20, and the other ends of the delivery pipes extend to the interior of the placement groove and are connected with the interior of the positioning plate 7.

[0035] It should be noted that the positioning plate 7 itself is made of a material with good thermal conductivity.

[0036] By providing a water storage tank 18, a reflux tank 19 and a water pump 20, the staff can inject cooling water into the interior of the positioning plate 7. The positioning plate 7 can absorb the heat generated during the relay test, thereby cooling the relay and ensuring the normal progress of the test.

[0037] The working principle of the above embodiment is: when the relay is placed on the surface of the positioning plate 7, the staff starts the motor 9, so that the motor 9 drives the threaded cylinder 4 to rotate through the driving gear 10 and the driven gear 8, so that the threaded block 5 can move downward, so that the threaded block 5 drives the positioning plate 7 to move downward through the fixing column 6, so that the positioning plate 7 can drive the relay to move downward for a distance, so that the placement groove limits the bottom of the relay, thereby solving the problem that the traditional relay clamping device usually only clamps the two side surfaces of the relay, so that the bottom of the relay is still in an active state, causing the relay to be easily offset or shaken during the test.

[0038] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for relay testing, comprising a workbench (1), characterized in that: A cavity (2) is provided inside the workbench (1), the front of the cavity (2) is connected to the outside, a sealing plate (3) is fixedly installed in the cavity (2) by means of bolts, a placement groove is provided on the top of the workbench (1), a rubber pad is fixedly installed on the inner wall of the placement groove, and a fixing component is provided inside the cavity (2); The fixing assembly comprises a driving member arranged inside the cavity (2); a connecting member extending into the interior of the placement groove is arranged on the inner bottom wall of the cavity (2) and located on one side of the driving member; and limiting members are arranged on the upper surface of the workbench (1) and located on both sides of the placement groove.

2. A relay testing positioning fixture according to claim 1, characterized in that: The connecting piece comprises a threaded barrel (4) rotatably mounted via a bearing, a threaded block (5) being threadedly mounted on the inner wall of the threaded barrel (4), a fixing column (6) being fixedly mounted on the upper surface of the threaded block (5) and vertically movably penetrating the threaded barrel (4) and extending to the interior of the placement groove, and a positioning plate (7) being fixedly mounted on one end of the fixing column (6) located inside the placement groove.

3. A relay testing positioning fixture according to claim 2, characterized in that: The driving member comprises a driven gear (8) fixedly sleeved on the surface of the threaded barrel (4), a motor (9) fixedly mounted on the inner bottom wall of the cavity (2), and a driving gear (10) meshing with the driven gear (8) fixedly mounted on the output end of the motor (9).

4. A relay testing positioning fixture according to claim 2, characterized in that: The limiting member comprises a fixing plate (11) fixedly mounted on the upper surface of the workbench (1), an electric push rod (12) fixedly mounted on one side surface of the fixing plate (11), a movable end of the electric push rod (12) movably passes through the fixing plate (11) in a transverse manner and is fixedly mounted on a limiting plate (13), and an anti-slip pad is fixedly mounted on one side surface of the limiting plate (13) facing the positioning plate (7).

5. A relay testing positioning fixture according to claim 2, characterized in that: A contact block (14) is fixedly mounted on the lower surface of the positioning plate (7), and a control switch (15) is fixedly mounted on the inner bottom wall of the cavity (2) and directly below the contact block (14).

6. A relay testing positioning fixture according to claim 2, characterized in that: The interior of the positioning plate (7) is a hollow structure, a plurality of support rods (16) are fixedly installed between the inner top wall and the inner bottom wall of the positioning plate (7), and a temperature sensor (17) is fixedly installed on the inner bottom wall of the positioning plate (7).

7. A relay testing positioning fixture according to claim 2, characterized in that: A water storage tank (18) is fixedly mounted on one side surface of the workbench (1), and a return box (19) is fixedly mounted on the other side surface of the workbench (1). Water pumps (20) are fixedly mounted on the inner bottom walls of the water storage tank (18) and the return box (19). Delivery pipes are fixedly mounted on the output ends of the two water pumps (20), and the other ends of the delivery pipes extend to the interior of the placement groove and are connected to the interior of the positioning plate (7).

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